Case Study: Chainlink Sports Prediction App

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HackBG has developed a cutting-edge sports prediction application, showcasing the versatile applications of Chainlink’s oracles in the realm of smart contract-based applications. This project is a demonstration of integrating real-time sports data like Rugby scores, into smart contracts for predictive gaming purposes. It’s important to note that this project has been developed solely for educational purposes and is not intended for gambling.

Project Overview

Key Features

  • Real-Time Sports Data Integration: Utilizing Chainlink Functions, the app incorporates live data from rugby games, allowing users to predict and bet on game outcomes using tokens.
  • Automated Payouts: Chainlink Automation is employed to automatically process bets and distribute rewards, ensuring a seamless user experience.
  • Cross-Chain Token Transfer: With Chainlink’s Cross-Chain Interoperability Protocol (CCIP), winners can withdraw their earnings in a different blockchain network than the original bet, providing greater flexibility and user choice.
  • User-Friendly Interface: Developed using TypeScript and Next.js, along with the Rainbow Kit for wallet connectivity, the front-end is designed for ease of use and accessibility.

Development Process

The sports prediction app was a challenging project, taking about 1.5 to 3 months to develop. The team focused on creating a robust and interactive platform that could handle real-time data and execute automated functions with precision.

  • Technological Stack: The project leverages technologies like Solidity, Hardhat, along with Chainlink SDKs, TypeScript and Next.js.
  • Frontend and Backend Development: The application comprises two main components – the smart contracts (backend) and the user interface (frontend). Each component was meticulously developed to ensure seamless integration and functionality.

The Vision for the Project

The Chainlink Sports Prediction App is envisioned as a model for integrating real-time data into smart contracts for various applications beyond sports betting. It demonstrates the potential of blockchain technology in creating interactive and automated platforms for a range of use cases.

Technological Innovation and Impact

This project is a testament to the innovative use of Chainlink’s Functions, Automation, and CCIP. It exemplifies how blockchain technology can be utilized to create applications that are not only functional but also adaptable and user-centric. By enabling automatic payouts and cross-chain token transfers, the app pushes the boundaries of traditional smart contract applications.


The Chainlink Sports Prediction App is a clear indication of HackBG‘s capabilities in leveraging blockchain technology for innovative applications. It serves as a prime example of how real-time data and smart contracts can be combined to create powerful, automated systems. This project is a step forward in our journey to explore and manifest the potential of blockchain technology in various sectors.

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